Detachable handle for screw-drivers.



J. W. EGGLESTON.

DETACHABLE HANDLE FOB. SCREW DRIVERS.

APPLIUATION rum) 511N322, 1912.

1,096,529. Patented May 12, 19m

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JAMES W. EGGLESTON, 0F MINNEAPOLIS, MINNESOTA.

DETACHABLE HANDLE FOR SCREW-DRIVERS.

To all whom it may concern Be it known that I, JAMEs l/V. EGGLESTOX, ofMinneapolis, I-Iennepin county, Minna sota, have invented certainnew anduseful Improvements in Detachable Handles for Screw-Drivers, of whichthe following is a specification.

The object of my invention is to provide a detachable handle capable ofbeing mounted at right angles substantially to the screw driver shankfor the purpose of aiding the person using the screw driver in securinglarge screws into the wood, or small screws into wood of very closegrain where it is extremely difficult to operate an ordinary screwdriver having a handle in line with the shank.

My invention consists generally in various constructions andcombination, all as hereinafter described and particularly pointed outin the claims.

In the accompanying drawing forn'iing part of this specification, Figure1 is a side view of a screw driver with my detachable handle mountedthereon, Fig. 2 is a transverse sectional view of the same, Fig. 3 is adetail sectional View illustrating the manner of clamping the handle onthe shank of the screw driver.

In the drawing, 2 represents the screw driver shank of ordinaryconstruction and 3 the usual handle therefor. 4 represents hand grips ofmetal or suitable material having hubs 5 formed thereon in which theends of a screw 6 are tapped, the screw being of sufficient length toallow adjustment of the hand grips back and forth thereon until thedesired position with respect to the shank of the screw driver isobtained. 7 and 8 represent aws loosely mounted on the screw 6 betweenthe hubs 5 and having transverse slots 9 therein to receive theflattened portion of the shank 2. When the shank has been inserted inthe slots the hand grips i are turned, moving the jaws toward oneSpecification of Letters Patent.

Application filed June 22, 1912.

Patented May 12, 1914.

Serial No. 705,225.

another until they firmly grip the edges of the shank. I prefer also toprovide an adjusting screw 10 in one of the jaws that is adapted tocontact with the face of the other jaw to hold the faces of the jaws inparallel relation with one another when they engage the shank, therebypreventing any side or lateral strain on the jaws. Iinay also provideholes 11 in the hand grips into which a wire, nail, or any suitabledevice may be inserted for tightening the jaws of the shank or looseningthem.

I have shown the device used in connection with a screw driver, but itmay be applied to the shanks of various other tools and the range ofadjustment of the jaws allows the device to be clamped on shanks ofvarying shapes and sizes and with or without handles.

I claim as my invention:

1. A detachable handle for screw drivers comprising hand grips, a screwtapped therein, jaws loosely mounted on said screw, said jaws havingseats to receive the shank of a screw driver at one side of the center'of said jaws, and an adjusting screw on the opposite side of the centerof said jaws and operating to hold them in parallel relation with oneanother during the clamping operation.

2. A temporary handle for tools comprising spaced hand-grips, a screwhaving its ends axially engaged in said hand-grips, and opposed jawsloosely mounted on said screw and bearing against the inner ends of saidhand-grips, said jaws being respectively formed at one side of the screwwith opposed recesses for conjointly receiving the shank of a tool.

In witness whereof, I have hereunto set my hand this 24; day of May,1912.

JAMES \V. EGGLESTON.

\Vitnesses GENEVIEVE E. SORENSEN, EDWARD A. PAUL.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. O.

